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Engine Parts - Pulleys

For complete accessory drive kits, CLICK HERE!

Billet Serpentine Pulley Kit
Your Price:
$1,199.99

Billet 454/502 Mercury Serpentine Pulley Kit

421-301K

Billet 454/502 Mercury Serpentine Pulley Kit

This kit comes with:

  • 1 - Crankshaft pulley
  • 1 - Circulating pump pulley
  • 1 - Sea pump pulley
  • 1 - Power steering pulley
  • 1 - 17mm straight shaft Alternator pulley (Does not work with Mando)
  • 1 - Idler pulley

All pulleys are CNC machined and are tumble polished (semi-polished, satin finish).
NOTE: This kit will not retrofit V-Belt Pulley Systems to Serpentine. It is to replace existing Serpentine setups only!


Billet V-Groove Engine Pulley Kit For Mercury Big Block Chevy Generation 4

Your Price:
$469.99

This Part has options, please click the button below to order.

Billet V-Groove Engine Pulley Kit For Mercury Big Block Chevy Generation 4

421-201K

Billet V-Groove Engine Pulley Kit For Mercury Big Block Chevy Generation 4

This kit includes:

  • (1) 3-groove crankshaft front pulley
  • (1) Sea pump pulley
  • (1) Power steering pulley with mandrel
  • (1) Alternator Pulley. Note: Please indicate what style alternator shaft you have for the correct pulley.

At Hardin Marine we manufacture the finest high speed deep groove engine pulleys available. Each pulley is manufactured from 6061-T6 billet aluminum using Tru-Trac technology. Tru-Trac allows the V-belt to ride deep in the belt groove for maximum belt contact. Both the power steering and sea pump pulley use mandrel mounting features that protect the pulley from undue shaft heat. The most common cause for failure in lesser quality pulleys is caused from heat transferring to the pulley releasing from the shaft causing undue damage and safety hazards. All Hardin Marine shaft mount style pulleys use mandrels assuring you the best money can buy.


Billet V-Groove Engine Pulley Kit For Mercury Big Block Chevy Generation 5 & 6

Your Price:
$487.99

This Part has options, please click the button below to order.

Billet V-Groove Engine Pulley Kit For Mercury Big Block Chevy Generation 5 & 6

421-202K

Billet V-Groove Engine Pulley Kit For Mercury Big Block Chevy Generation 5 & 6

This kit includes:

  • (1) 3-groove crankshaft front pulley
  • (1) Sea pump pulley
  • (1) Power steering pulley with mandrel
  • (1) Alternator Pulley. Note: Please indicate what shaft style your alternator has for the correct pulley.

At Hardin Marine we manufacture the finest high speed deep groove engine pulleys available. Each pulley is manufactured from 6061-T6 billet aluminum using Tru-Trac technology. Tru-Trac allows the V-belt to ride deep in the belt groove for maximum belt contact. Both the power steering and sea pump pulley use mandrel mounting features that protect the pulley from undue shaft heat. The most common cause for failure in lesser quality pulleys is caused from heat transferring to the pulley releasing from the shaft causing undue damage and safety hazards. All Hardin Marine shaft mount style pulleys use mandrels assuring you the best money can buy.


Double Groove Alternator Pulley
Your Price:
$59.95

Double Groove V-Belt Alternator Pulley

421-219

Double Groove V-Belt Alternator Pulley for use on alternators with round pulley shaft. 2-5/8" OD. Fits a .670" Round Shaft.


Gen 6 BBC Serpentine Power Steering Pulley
Your Price:
$99.99

Gen 6 BBC Serpentine Power Steering Pulley

421-221

Gen 6 BBC Serpentine Power Steering Pulley

These power steering pulleys mount with a mandrel so you can bolt the pulley to the mandrel. Some manufacturers have you press their pulleys on, these usually work themselves off due to belt heat & pump heat. Always use a mandrel for mounting. Raw Finish.


Gen 7 496 Sea Pump Pulley
Your Price:
$179.99

Gen 7 350, 496, 502 Mag Sea Pump 7" Axius Pulley and Mandrel Kit - Black

625-4312

Replacement 496 Sea Pump Axius 7" Pulley and Mandrel Kit

This billet pulley is designed as a replacement for popular MerCruiser Axius applications. Will fit stock MerCruiser or Hardin Gen 7 Pump. For 350, 496, 502 Mag with 7" diameter Axius pulley applications only. Includes mandrel and bolts.

Hub, Xover P/S Pump-Pulley
Your Price:
$48.99

Hub, Xover P/S Pump-Pulley

625-8107

Hub, Xover P/S Pump-Pulley

Power steering pump mandrel. Fits late model power steering pumps with plastic reservoir, and krc style pumps, both with a 0.669" diameter shaft.


Merc EFI Ribbed Idler Pulley 4.42" Diameter
Your Price:
$109.99

Merc EFI Ribbed Idler Pulley 4.42" Diameter

625-8223

Billet Serpentine Idler Pulleys - Merc EFI Ribbed Idler Pulley 4.42" Diameter


Mercury 600/662/700 Upper Blower Pulley 3.50
Starting From:
$299.99

This Part has options, please click the button below to order.

Mercury 600 / 662 / 700 Upper Blower Pulley

625-822 + Option(s)

Mercury 600/662/700 Upper Blower Pulley

Billet aluminum blower pulley, 3.25" or 3.50" diameter. NOTE: The 3.50" pulley has slots cut in the pulley face while the 3.25" pulley does NOT have the slots cut in the pulley face.

Pulley Mandrel For Mercury Sea Pumps
Your Price:
$33.95

Pulley Mandrel For Mercury Sea Pumps

625-4002

Pulley Mandrel Mercury Sea Pumps.


Ribbed Idler Pulley
Your Price:
$109.99

Ribbed Idler Pulley

625-4365

Ribbed Idler Pulley


S/C BBC 3 Groove Crank Pulley
Your Price:
$229.99

S/C BBC 3 Groove Crank Pulley

421-218

S/C BBC 3 Groove Crank Pulley

  • BBC 3grv crank pulley for Supercharger application.
  • Will fit either 3 or 6 bolt damper.
  • 5.40 outside diameter by 2.350 thick

Smooth Idler Pulley
Your Price:
$86.99

Smooth Idler Pulley

625-4364

Smooth Idler Pulley

OD of belt surface is 2.420". Fits 0.675" shaft.

6-Rib Serpentine Crankshaft Pulley for Big Block Chevy
Your Price:
$194.99

6-Rib Serpentine Crankshaft Pulley for Big Block Chevy

625-8176

6-Rib Serpentine Crankshaft Pulley for Big Block Chevy (Mercury HP500 Engine Spacing), Polished

These are billet crankshaft pulleys that are CNC precision machined from 6061 T-6 billet aluminum. 5-1/2" Diameter, 1-3/4" thick


2- Groove Billet Crankshaft Pulley For Big Block Chevy
Your Price:
$78.99

Big Block Chevy 2-Groove Billet Crankshaft Pulley

421-843

2-Groove Billet Crankshaft Pulley For Big Block Chevy

  • Machined from 6061-T6 billet aluminum. 
  • Set up for a Mercury replacement with deeper v-groove. 
  • Comes highly polished.
  • Diameter of 6.5"
  • Pilot Hole is 1-1/8"

Small Block Chevy 3 V-Groove Crank Pulley
Your Price:
$109.99

Big Block Chevy 3 V-Groove Crank Pulley

421-215

BB Chevrolet 3 V-Groove Billet aluminum OEM style Crankshaft Pulley. This pulley fits Chevrolet 454 7.4L and 502 8.2L late model applications. Replaces Mercruiser Part #90081T1 and casting # 90081C.

Pulley Specifications:
  • 2.25" thick from damper face to front of pulley
  • 1st groove (alternator) 6.60" diameter
  • 2nd groove (sea pump) 5.05" diameter
  • 3rd groove (power steering) 6.60" diameter

Small Block Chevy 3 V-Groove Crank Pulley
Your Price:
$96.99

Big Block Chevy Billet Small Diameter Crank Pulley

740-64201

Big Block Chevy Billet Small Diameter Crank Pulley - Machined from solid billets of the highest-grade aircraft aluminum for maximum durability and feature deep, precision-machined groove to ensure belt retention, even during extreme changes in engine rpm. These pulleys have a black anodized hard-coat for extended life and corrosion resistance . Diameter 5.250".


2- Groove Billet Crankshaft Pulley For Oldsmobile
Your Price:
$134.99

Ford 460 Single Groove Billet Crankshaft Pulley

421-858

Single Groove Billet Crankshaft Pulley For Ford 460

  • Machined from 6061-T6 billet aluminum. 
  • Comes highly polished.
  • 5-5/8" Diameter
  • 1-3/4" Height


2- Groove Billet Crankshaft Pulley For Oldsmobile
Your Price:
$76.99

Oldsmobile 2-Groove Billet Crankshaft Pulley

421-856

2-Groove Billet Crankshaft Pulley For Oldsmobile

  • Machined from 6061-T6 billet aluminum. 
  • Comes highly polished.
  • 4-3/4" Diameter
  • 2-1/4" Height


Single Groove Billet Crankshaft Pulley For Big Block Chevy
Your Price:
$69.99

Single Groove Billet Crankshaft Pulley For Big Block Chevy

421-841

Single Groove Billet Crankshaft Pulley For Big Block Chevy

  • Machined from 6061-T6 billet aluminum. 
  • Set up for a Mercury replacement with deeper v-groove. 
  • Comes highly polished.
  • 6-7/16" Diameter
  • 7/8" Height

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